Abstract
The pyrolysic behaviors of coumarone-indene resin and alkylphenol resorcinol-formaldehyde resin have been studied for the direct component analysis in cured rubber. The pyrolysis-pathways based upon main primary degradation products have been proposed to identify the mass spectrum of pyrolyzates. From the coumarone-indene resin, the indene, coumarone, coumarone-indene (m/z 234), and indene-indene (m/z 232) were observed as the characteristic monomeric and/or sequential pyrolyzates. Resorcinol and t-octylphenol were observed as main pyrolyzates in alkylphenol resorcinol-formaldehyde. Upon these pyrolysic behavior, it would be readily available to identify these oligomeric resins in a cured rubber.
